This is a stero image, it can be seen in 3D. It has to be seen “eye crossed”: Stay at the normal disctance from the monitor and cross your eyes so the two images will become tree. The image in the middle is in 3D.
If it’s the first time you see an image of these relax your eyes, probably at first the image is not very stable and not focused, relax, concentrate in the middle image but not try to hard and eventually you should see it focused. (Relax if you get tired)
You should end seeing the middle 3d image it very clearly so if you don’t but can see the depth maybe you are not focusing it properly, keep trying. Press the F11 key if you don’t see the image complete.